12653052040 has 32 divisors (see below), whose sum is σ = 28859365080. Its totient is φ = 4991887872.

The previous prime is 12653052011. The next prime is 12653052047. The reversal of 12653052040 is 4025035621.

It can be written as a sum of positive squares in 4 ways, for example, as 8186268484 + 4466783556 = 90478^2 + 66834^2 .

It is not an unprimeable number, because it can be changed into a prime (12653052047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2163699 + ... + 2169538.

Almost surely, 2^12653052040 is an apocalyptic number.

12653052040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12653052040 is an abundant number, since it is smaller than the sum of its proper divisors (16206313040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12653052040 is a wasteful number, since it uses less digits than its factorization.

12653052040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4333321 (or 4333317 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 12653052040 its reverse (4025035621), we get a palindrome (16678087661).

The spelling of 12653052040 in words is "twelve billion, six hundred fifty-three million, fifty-two thousand, forty".